There are no college courses to build up self-esteem or high school or elementary school. If you don't get those values at a early age, nurtured in your home, you don't get them.
Now an embryo may seem like some scientific or laboratory term, but in fact the embryo contains the unique information that defines a person. All you add is food and climate control, and some time, and the embryo becomes you or me.
For a lot of my childhood, I didn't want to direct movies because I didn't really know what directing was.